INTERNAL ERROR when creating Index from Collection

I am on Starter Plan. I Cannot create Index from Collection. I get message INTERNAL ERROR. Collection environment is asia-northeast1-gcp, Vector Count 20951, Dimensions 1536, Size 126460 MB. When I click on Create Index the proposed Cloud Provider is AWS and Region is Virgina us-east-1

Hi @bs2023, and thanks for your question!

Are you trying to create a serverless or pod-based index from your collection?

Have you seen this docs page about creating indexes from collections?

It specifies a couple of constraints - for example:

Serverless indexes can be created only from collections for legacy free indexes. For more details, see Migrate a legacy starter index to serverless.